what do i need! jbl 1200 .1

i have an sealed box with each sub in its own chamber. the cubic feet is 1.25 each chambergoingcrazyonsound

skylark wrote: how do you know if thats true because my audiobahn 1500hct amp wasnt even making it hit hard and its supposed to be 2000 watts at one ohm but im being to see that audiobahn amps are overrated. but i hope my subs dont blow but if they do i have 2 brand new p gold ti15d subs so if it does not sound good i will get an ported box custum made for the p golds and hook each amp up to each sub.but hopefully the compsvrs can handle the jbl's. i will know by tommorrow how it sounds because im gonna put it in around noon tommorrow

have you verified that? I have tested the Audiobahn 1300HC series amp to about 1575 watts RMS and its rated at 1200 RMS

nope but an few years ago i was running 3 jl audios 12's off an 600 watt jbl mono block amp and i was hitting way harder then i was when i ran the audiobahn amp on my 4 kickers. thats why im gonna put 2 jbl 1200 watt amps on each pair tommorrow.goingcrazyonsound

i just checked out what kind of alt that i have. its an 140 amp alt made by PROFROM. i ordered it out of jc whitney for an 149.95 . my engine is an 77 olds rocket.........so is that an cheap alt or an alright brand.need to know asap because im gonna put my equipment in tommorrow and i might need to upgrade the alt right?goingcrazyonsound

Hey skylark, you ever stop and think that maybe the kickers just suck? I have dealt with audiobahn a few times, and they put out all they say, and more. I'd make sure you have it tuned properly, and the boxes are good for the subs.  its all in the details man. 1990 Honda Civic HB:

Clarion DXZ545MP H.U.

2- 6.5" Power Acoustik interiors

Diamond Audio 600.1 amp

Diamond Audio 15" M6MKII

Pyramid PB881X 4 CH. Amp

I would have to agree. Im not running Audiobahn right now but I have in the past. Im all the time changing stuff around, benefits of dealer status. Anyway I still have the stock 100 amp alternator in my car. Dont get me wrong, a bigger alt is the way to go, but not always a must have. Thats where the battery capacity comes in. You pull off of the battery and the alt. Of course the more crap you have running in your car will keep the charging system from recovering as quick. Just for future reference, if anyone wants to check to see what kind of power there amp is making do this. Set your meter to AC volts and read the voltage on the amps outputs with the system turned up to where its hitting as loud as possible. A good test cd is what I use. Take the highest number you read and square it, then divide it by the impedance the amp is seeing. That will be peak power. RMS power is peak power times .707. Example: You read 50 volts. 50 X 50 = 2500. Your amp is seeing a 2 ohm load so 2500/2 = 1250 watts peak. Multiply 1250 X .707 = 883.75 watts RMS.

1 more thing. You will notice the amp will make more or less power depending on the box. You would think that the amp should make the same power but not so. The amp ic CAPABLE of making the same power but some boxes are more efficient than others. The amp will usually make more power in a ported box for this reason.

well i hooked it up today and it is loud and perfect. but heres the problems that are going on i have 3 tvs ps2 3 amps one alpine vr for the mids and tweets and the two jbl 1200.bp1 amps. now when i hit low bass notes the deck shuts off. just the deck not the tvs or ps2 so whats wrong. also my battery is dead and i took the car on the freeway and the deck still cut off.....HELPgoingcrazyonsound